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Finding the Third Proportional to 144,420 and 223,186

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Solution

The third proportional to 144,420 and 223,186 is: 344,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,420 : 223,186 = 223,186 : x
  2. Step 2: Convert to fraction form
    144,420/223,186 = 223,186/x
  3. Step 3: Cross multiply
    144,420x = 223,186 × 223,186
  4. Step 4: Simplify right side
    144,420x = 49,811,990,596
  5. Step 5: Solve for x
    x = 49,811,990,596/144,420
  6. Step 6: Final answer
    x = 344,910.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.